Probably the weirdest thing I've ever seen

The scene: a crowded, noisy room. I'm sitting at a table with some friends, acquaintances and strangers who are playing a card game. I'm not playing, just observing. My eyes wander around the room and fall on a young boy. He's sitting at the edge of the room, holding a roll of blue tape, tearing off strips and taping his own mouth shut. Layers and layers of tape on his mouth. When there was a solid mass he started puffing out his cheeks. I spent the next couples of days crying with laughter over it. Apparently he was so bored taping his mouth shut seemed like the most entertaining option.